Traveling crane



(No Model.) 8 3 Sheets-Sheet 2.

H. M. BARNI-IART & E. HUBER.

TRAVELING CRANE.

No. 285,100. Patented Sept. 18,1888.

INVENTORS,

WITNESSES: I

(No Model.) 3 SheetsShee t 3. H. M. BARNI-IART & ELI-LUBER.

1 TRAVELING CRANE. No. 285.100.

Patented Sept. 18, 1883.

INVENTORS k W84 ATTORNEYS.

N. PETERS. Fhuwmm UNITED STATES,

PATENT OFFICE.

- minimum -b4.

TRAVELING CRANE.

SPECIFICATION forming part of Letters Patent No. 285,100, datedSeptember 18, 1883.

' Application filedAngnst 6. 1883. (No model.)

To all w/wm it may concern Be it known that we, HENRY M. BARNHART andEDWARD HUBER, citizens of the United this specification, and in which-Figure 1 is a side view of our improved traveling crane with the side ofthe car removed. Fig. 2 is a top view of the same with the top of thecar removed. Figs. 3, 4, and 5 are detail views of different parts ofour invention, which will behereinafter described.

Similar letters of reference indicate corresponding'parts in all thefigures.

Our invention has relation to, traveling cranes; and it consists in theimproved conshown in Fig. 4.

struction and combination of parts of a crane which is adapted to beemployed in digging out embankments or other work of a similarcharacter, as will be hereinafter more fully described and claimed.

In the accompanying three sheetsof drawings, A represents a car, havingin its rear part a boiler, B, and engines 0 O, which are all of ordinaryconstruction, and which furnish the power by which thedrive shaft isrotated. The drive-shaft Dis hung in suitable bearings upon the bottomof the car, and has secured upon it a pinion, D, adapted to mesh with agear-wheel, E, secured upon the shaft F.

G represents the mast, which is rigidly secured in a vertical positionupon the front platform of the car A, the lower end of the mast passingthrough the center of the turntable H, while upon the top of the mastisaffixed the head, I, a detail view of which is This head is cast with avertical socket, J, into which the top of the mast fits, and withinclined sockets J, into which the ends of braces K are fitted, thelower ends of said braces fitting into sockets L, secured to the sidesof the car. Upon the sides of the head are cast staples M, to whichsupplemental bracing-chains may be attached when work of anexceptionally heavy character is being performed, for the purpose ofstill further strengthening the mast. In the top of the head I is arecess or space,l l,' which is covered by a plate, 0, in which recess ispivoted or journaled the sheaves P, secured in the recess in such amanner as to leave a space between them, through which the hoistingehainpasses.

H represents the turntable, which is provided with an aperture in itscenter, through which the lower end of the mast G passes, the turn-tablebeing provided with a collar, Q, fitting around the lower part of themast, and extended on one side to form jaws R, between which is pivotedthe end of a metal shoe, S, secured upon the lower end of the crane T.The crane T is formed of the two side pieces, T T, through which passthe shafts U, V, NV, and X, the shafts U and Vbeing secured near theupper end of the crane, while the shafts W and X are located at aboutits center, for the purpose hereinafter described.

. A indicates the beam, upon the lower end of which the scoop or dipperB is secured, the beam A being provided on its lower edge with a rack,O, and being made of such athickness as to pass readily through thespace between the two side pieces of the crane.

Upon the shaft F, previously referred to, is loosely journaled thecentral hoisting-drum, E, while near either end of the said shaft isloosely journaled a-drum, F, each of the drums F having secured to itone end of a chain, G, :which passes around the turn-table H, and servesto swing the said table in either direc tion, ashereinafter described.

H indicates a pivoted lever, one end of which is secured to the centerof a frame, 1, the ends or arms of which engage with the loosely-j ournaled drums F, so that by shifting the lever H to either side either oneof the drums F can be caused to engage with suitable frictionclutches,K, on the shaft F, by which arrange ment either ,one of the drums F canbe caused to revolve, while the other remains loose, to revolve bytension of chain. By means of the pivoted lever L and thefriction-clutch M, the hoisting-drum E can be caused to revolve with theshaft F or to remain stationary, as may be desired.

N indicates a metal collar, which fits loosely upon the upper part ofthe mast 'Gr, immeditheir other ends to the front part of the scoop B,then over a sprocket-wheel secured upon the shaft U, the extremity ofthe chain being then fastened to the shell or casin g of the pulley R.

Upon one end of each of the shafts V and X is journaled a sprocket-wheelS S, a chain, U, passing around the said wheels. Upon the other end ofthe shaft X is a pinion, V, adapted to mesh with a gear-wheel, \V, onthe outer end of the shaft 7, that part of the shaft XV which liesbetween the sides of the crane being provided with a pinion, X, adaptedto mesh with the rack G on the lower side of the'beam A.

A A represent swinging jack-beams or lateral supports, which are hingedone to either side of the car near its front end. WVhcn the crane is onthe road, the hinged supports are folded back against one side of thebody of the car, while when the crane is being operated the jack-beam isswung out to any desired angle, and is secured in its adjusted positionby means of a rod, B B, as shown in Fig. 2 of the drawings, thejack-screw 0 being turned down until its end bears against the ground.

The manner in which our improved traveling crane is operated is asfollows: The scoop or dipper B being full of the dirt or rockfrom theembankment which is being dug away, the lever L is thrown to one side toengage the hoisting-drum E with the friction-clutch M, which causes thehoisting-drum to revolve with the shaft F, thereby winding up the hoist-ingchain P and raising the scoop B to its highest point. To swingthe scoop to one side for the purpose of emptying its load from. it, theop erator throws the lever H to one side, in order to engage either oneof the drums F with its friction-clutch, when the drum so connected willrevolve with the axle F, thereby winding,

around itself one end of the chain G, the other end of the said chainbeing at the same time unwound from the loose drum F, the chain Gswinging the turntable H and the crane T, which is pivoted at its lowerend to the turntable, to either side, at the will of the operator. Bymoving the lever L to one side, the hoisting-drum E may be released fromthe frictionclutch M, when the hoisting-chain P will be unwound from thedrum. E by the weight of the scoop or bucket B, which may be thusallowed to descend for the purpose of refilling. By running thehoisting-chain through between.

seamen two sheaves, P, in the head of the stationary mast G, thehoisting-chain will bear squarely against one of these sheaves, nomatter to which side the crane is swung, and will there by work with theleast possible amount of friction. By the use of the swinging j ackbeamsor lateral supports A A, the body of the car can be securely braced toprevent the car from being overturned to either side when the crane isbeing swung to one side with an unusually heavy load upon it.

From the foregoing description, taken in connection with theaccompanying drawings, the-construction and operation of our improvedtraveling crane will readily be understood without requiring furtherexplanation;

It will be seen that by constructing the drums F, chain G, andturn-table H in the manner described the crane can be easily and readilyswung to either side at the will of the operator.

Having thus described our invention, we claim and desire to secure byLetters Patent of the United States 1. The mast G, provided with a head,I, having a recess, N, in its top, in which are journaled the sheaves P,and provided with staples M and sockets J, adapted to receive the endsof the braces K, as and for the pur pose shown and set forth.

2. The head I, having a recess, N, in its top, in which are journalcdthe sheaves P, and provided with staples M and sockets J and J J,adapted to receive the head of the mast G and the ends of the braces K,as set forth.

3. The combination of the swinging jackbeams A A, provided withjack-screws O". and rods B, by which the j ack-beams are secured intheir adjusted position, as andfor the purpose shown and set forth.

4. The combination of the shaft F and means for operating the same,drums F, loosely journaled upon the shaft near each of its ends,friction-clutches K and means for operating the same, chain G, passingaround the turn-table H, and secured at either end to the sliding drumsF, and turn-table H, adapted to be rotated by the chain G, hoisting-drumE, loosely journaled upon the shaft F at its central part,friction-clutch M and means for operating the same, hoisting chain P,mast G, pivoted to the turn-table near its center, and provided with ahead, I, and collar N loosely secured upon the mast G, below the head I,and con nected to the upper end of the crane T by a chain, 0, allconstructed and combined as and for the purpose shown and described.

In testimony that we claim the foregoing as our own we have hereuntoaflixed our signa tures in presence of two witnesses.

HENRY M. BARNHABI. EDXVABD HUBER.

Witnesses:

J. E. DAVIDS, B. Wanner.

